A configurable set of panels that display various debug information about the current request/response.
Debug Toolbar for Magento 2
This is a modified version of the original debug toolbar for CodeIgniter ported from Kohana
Alternative Kernel for Drupal 8 to improve the Developer eXperience during the development process.
Extends the Debug Bar plugin for usage with ElasticPress
A powerful debug and profilers tool for the Phalcon Framework
CodeIgniter Debug Bar using PHP Debug Bar